Sash or screen lock



' -April 14, 19 25.

- F. M. DAVENPORT SASH 0R SCREEN LOCK Filed my 10. 192

F. M. DAVENPORT SASH on SCREEN LOCK April 14, 1925.

Filed May 10 1923 2 Sheets-Shoot 2 was a Patented Apr. 14, 1925.

UNITED STATES,

FRED M. navnnronr, or Los enemas, CALIFORNIA.

SASH OR SCREEN LUCK.

Application filed May 10, 1923. serial la. 637,968.

*10 alt mil-m it may concern.

Be it known that I, Flinn M. DAvnNron'r, a citizen of the United States,residingiat Los r rng'eles, in the county otLos Angeles and State ofCalifornia, have invented new and useful Iinproveinents in Sash orScreen Locks, of which the following is a specili'ca-- tion. a

This invention relates to looks, and more particularly to sliding sashor screen locks, and has for its object to provide a means foreflectively locking sliding sashes in their ways. It is an object toprovide a sash frame lock adapted to .l asle'n in position either one ofa plurality or sashes or to fasten a contiguously arranged set or plu-Tality 0t sashes. Another object is to provide a sash or screen fasteneror locl; that may he readily installed in a framework or guide in whicha sash or sashes are slidahly movable.

Another object is to provide a sash loclc of few and substantial parts,and which are all of simple form so as to obtain a low cost ofmanufacture. Another object is to provide a sash lock in which, when theparts are assembled, they are not readily dislodged and-displaced orlost.

Other ohjeets and advantages will be.

made manifest in the following specification ot' einbodnne-iit-s of-thelnvention illustrated in the accompanying drawings, wherein- (5 olFigure 5. I a Fig. 7 is a side elevation of the device of Figure 5. I,

Fig. 8 is a cross section on line 88 of Figure 7. I v Fig. 9 is a plan amodified form of double sash lock.

Fig. 10 is a longitudinal section on line 1(')10 of Figure 9. y l

11 is a side elevation of the device ofFig'ure 9.

Fig. 12 is a transverse section on line 12-12 01 Figure 11. i

Fig. (l is a longitudinal section on line Fig. 13 is cross section ofanother modified form of double sash lock. Fig. 14, is a transversesection of a form efthe sash lock incorporating a tiltahle leaf. 15 is aplan of the device ot' Figur-e 15 Fig. 16 is a further modification ofthe lock. p k i In Figures 2to l, inclusive, there is shown a form ofthe invention which is adapted for the securing of a single sliding sashS, which may be shifted into and from a c011 tigi'u'ous position withrespect to the sash,

lock. This term of the lock consists of what might be termed a boxhaving a front wall 2 and 'a rear, parallel Wall 2, connected by abottom Web 2* and thus forming a guideway 3 het'weei'i the Walls andabove the hot tom or web into which thesash S. may be run or may stand,and is adapted to he clamped or locked.

The clamping of the sash issecured as by means of a suitableclamping'device shown hereii as a screw 4, threaded in the side wall 2of the box and adapted to he turned in to abut against the contiguousportion of an effectiveclamping element including an up wardly extendingblade or shoe 5, which passes throu h an aperture 6 provided therefor inthe hottoin or web 2 The lower face of the web is recessed or chamberedat 7 to receive the transversely extending lug or t ngue 5, forming apart of the clamping elemei'it. The aperture 6 has a suilioiei ittransverse dimension or width to provide for desired play oi: the shoeelement 5 so that this can be shifted positively inwardly under pressureof the screw 4 to engage the frame of the sash S, and force this againsta contiguous supporting portion of the box, such 'asthe wall 2.

It will beseen that after this Form of lock has been installed, as in awall or sash guide W,Figu1-e 1, the movable element, lj-l'ie shoe part5, cannot be dislocated and. lostfrom its position. nor 'an it bewithdrawn from. the box withoutthe entire removal of the box, which maybe secured as by means of screws .10, which maybe driven through thebottom or weh ol the box.

In Figures 5 to 8, inclusive. there isshown a form o'l the lock which isadapted for securing a plurality of sashes, or any one of the s ashes,that may be shifted into the lock or that may stand normally and looselyin the box- This box includesthe inner or front wall 2, the opposite,parallel wall 2 and the web or bottom 2", but in this form this box partis adapted for movement transversely as to a stationary elementincluding an upstanding blade portion 8, having a bridge or bottomportion in the form of oppositely extending flanges 8. The bottom of thebridge is recessed at 8* to receive the web of the shoe. This bridgeelement is adapted to be secured as by screws 10 to the primary wall orsash guide W, and therefore forms a stationary bridge beneath and as towhich the box structure is relatively movable when the clamping orlocking screw t is screwed in. The parallel, longitudinal edges of theflanges of the bridge element, which is provided with an intermediate,upstanding blade 8, are shown as recessed at 8 to receive the side walls2 and 2 of the box. The wall 2 is shown as recessed on its inner face at11 to form a shallow pocket in which may rest the contiguous, upwardlyextending and relatively movable member engaged by the screw r In Figure8 there is shown an L-shaped shoe member 5, having a laterallyextending, tongue portion 5 interposed between the bottom 8 of thebridge and the web 2 of the box, which is recessed at 2 to receive the"tongue 5 Thus, if a plurality of sashes are in the spaces 3 on the sidesof the blade 8 of the bridge, then, if the screw 4 is turned inwardly,the shoe element 5will be shifted solidly against the'contiguous sash inthe space or way .3, and there will be a concurrent, outward movement ofthe wall 2 of th box as to the near sash engaged by the shoe 5. At thesame time, the sash which is engaged by the wall 2* of the box will beclamped against the blade 8 of the bridge by the shifting of the box asto the bridge, with the result that all of the sashes in the lock spaceswill be clinched by the single setting up action of the screw 4.

In this form of lock, if there is but one sash occupying a position asbetween the blade 8 of the bridge and the shoe 5, then, when the screw tis screwed in, the box shifts laterally until its movement is limited byengagement with the contiguous edge of a flange 8 of the bridge, andthereafter the force of the screw will be spent against the shoe 5,which will be driven against the coi tiguous sash. If a sash is disposedbetween the blade 8 andthe wall 2 of the box and no other sash is inplace, then, when the screw 4: is turned in, the shoe 5 is drivensolidly against the edge of the bridge and the reaction shifts the boxas to the bridge and draws the wall 2 of the box against the contiguoussash, and the latter will be bound in by the lock device. 'Thus it willbe seen that this form of lock will secure either of twopositionedsashes or will secure both positioned sashes.

In Figures 9 to 12, inclusive, there is shown a modified form of doublesash lock in which the box has a front or side wall 2, and a parallelwall 2 and a bottom or web 2, through which may be passed fasteningscrews 10 to fix the box in position. In this form of the invention theshoe 5, disposed adjacent to the wall 2 to be engaged by the clampingscrew 4, has a laterally extending tongue 5, which is downwardlyrecessed to form a shoulder 5 and in this recess is disposed a secondshoe including an upwardly extending clamp part 15, having a laterallyextending tongue 15 resting on the top of the tongue 5 and contiguous tothe shoulder 5" thereof. tioned intermediately between the shoe 5, whichis movable, and the fixed box wall 2, and extends up through an aperture6 in the web 2*, whilst the shoe 5 extends up through an aperture 6provided therefor.

If two sashes are positioned in the ways or spaces 3 formed on eitherside of the intermediate clamping shoe 15, and the clamping screw 4; beturned in, the action is, first, to shift the shoe 5 against itscontiguous sash, and this will be shifted against the intermediate shoe15 and this, in turn, forced against the sash next against the fixedwall 2 all of the parts thus being fastened by the screw 4- If there beonly one sash in the lock and it occupies a position between the wall 2and the shoe 15, then, if the screw 4: be turned in, it shifts the shoe5 inwardly until its shoulder 5 engages the contiguous portion of theshoe 15, and this will be forced against the positioned sash and thuslocked. If there be only one sash in the lock and it be disposed betweenthe shoe 5 and the shoe 15, then, when the screw 4 is turned in, theshoes, being spaced by the sash, will be shifted together with the sashuntil the shoe 15 is limited by the far wall of its aperture 6 and thenwhen final pressure is applied by the screw, the shoes and the sash willbe jammed tight on each other and held. In such case, the shoulder 5will be held out of contact with the contiguous portion of the shoe 15by reason of the intervening sash between the shoes 5 and 15.

In Figure 13, a form of the lock is shown as including a box having awall 2 and a parallel wall 2 and aconnecting bottom or web 2". This webis perforated at 6 and at 6"" to provide for the reception of upwardlyextending parts 5 and 1.5, forming clamp shoes, which are connectedacross their lower ends by a connecting portion 5 This shoe element,therefore, approximates a U-shaped outline, and is applied by upwardinsertion through the bottom or Web 2*. the shoe portion 5 is thinnerthan the shoe portion 15, and is yieldable with respect thereto. Ifthere be two sashes S in the box, one of the sashes will be disposedbetween The shoe or blade 15 is posi-v Preferably,

the shoes 5--15 and there will be locked between the shoe 15 and thewall 2. If the screw 1 now be turned, the shoes 5-15 and the sash S willbe concurrently forced against the wall 2 and bound by the screw. Ifthere be only one sash interposed and it be locked between theshoe 15and the wall- 2, then, when the screw 1 is turned in, the unitary shoedevice 5-15 will be shifted and the shoe 15 will press against the sashand it will be held against the wall 2; meanwhile the shoe 5, beingunsupported by a contiguous sash, will be bent or sprung inwardly underscrew pressure. Should there be only one sash in the lock and it shouldbe positioned between the shoes 515, then the in wardly turned screw 1will. shift the unitary shoes 5 and 15 with the interposed sash towardthe far wall of the aperture 6 .in which the shoe 15 extends. Engagementof the shoe 15 by its limiting stop will thus support the sash S againstthe shoe 5 while this is sprimg inwardly by the screw 41.

in Figures 1 1- and 15, the improved lock includes a wall 2 and aparallel wall 2 connected by the bottom or web 2 which has an aperture 6and an aperture 6. Thebottom or web is recessed in its lower face at 7and is recessed in its top face at 7, these recesses being substantiallydiagonally opposite and each communicating with the intermediateaperture 6. This provides a chamber in which is disposed the cent 'al,upwardly extending blade or shoe 15, which has a lateral tongue. 15disposed in the recess 7, and a lateral tongue 15 disposed in the upperrecess 7. The shoe 5, disposed contiguous to the wall 2, to be engagedby the screw 4, has a short, lateral lug 5 entering a recess T in thebottom of the wall 2, and therefore being retained against verticalwithdrawal from the box structuren'hen the box has been mounted. The.shoe tongue 15 extends toward the contiguous part of the tongue 5 and isadapted to be engaged by the same when the screw 4 is turned in and whenthere is no sash interposed between the shoes 5 15, and when a sash ispositioned between the shoe 15 and the wall 2 The screw will, therefore,in such case, serve to turn the shoe 5 against the tongue of the shoe15, and

this will bind on the interposed sash.

if only one sash is disposed in the lock and is locked between the shoes515, then the shoe 5 will engage the sash and the latter will pressagainst the shoe l5 and this will bcshifted to the limit of itsl'IlOVGlIlGDt in its aperture 6 and the sash clamped between the shoes.If there be two sashes disposed one on each side of the shoe 15, thesashes will be bound between the wall 2, the shoe 15 and the shoe 5,when the screw 1 is turned in.

In Figure 16, the box is of substantially the same construction as thatshown in Figure 12, but there is a difference in the construction of theshoes. The shoe 5 has at its lower end a laterally extending andelongated tongue 5", and resting upon this are the bottom flanges 15formed-on each side of the. lower end of the tongue 15, which projectsup through the intermediately disposed aperture 6. The action in thisform is that, if two sashes are disposed one on each side of the shoe15, they will be clamped between the shoe 15 and the. wall 2 and theshoe 5 when the screw r is driven in.

If there be a sash only between the shoes 515, these shoes, with theinterposed sash, will be shifted until the shoe 15 is limited by the farwall of the aperture 6f. If there be only a sash between the shoe 15 andthe fixed wall 2?, then the shoe 5, under pressure of the screw t,engages the contiguous end of the shoe flange 15 and. thus the shoe 15is forced against the sash, which will bear against the contiguous wall2 Further embodiments, modifications and variations may be resorted towithin the. principle of the invention.

lV hat is claimed is:

1. A double sash lock comprising a box having a bottom for attachment toa support, a side for mounting, a clamping screw, a second side rigidwith the bottom and opposite the first side, there being an openingthrough the bottom, a shoe fitting in the opening against the side andhaving a laterally extending tongue, a set screw mounted through theside and engaging the shoe, a central tongue having flanges resting uponthe first tongue and extending through the opening in the bottom so asto form two spaces for the reception of sash frames and so as to gripand lock the sash frames by.

manipulation of the set screw.

2. A. sash lock comprising a box adapted for attachment to a support andhaving two rigid side walls and a large opening in the bottom, a setscrew mounted through one side wall, an L-shaped shoe mounted in the.

opening against the set screw, a T-shaped shoe mounted through theopening and hav ing flanges resting upon one leg of the- L-shaped shoe,and one of the flanges extending under the bottom of the box.

o. A sash lock comprising a box adapted forattachment to a support, saidbox hav mg a side wall adapted to carry a shoe engag ng means, there beng an opening formed in the bottom of said box, a second side wallopposite the [irst mentioned side wall, and a shoe having a bottomflange disposed within said opening, said shoebeing laterally slideableand having an up right portion engagoable by said shoe engaging means.

4. A sash lock comprising a box adapted for attachment to a support,said box having a side wall carrying a shoe engaging means,

there being an opening formed in the bottom of said box, a second sidewall opposite the first mentioned side Wall, an inwardly extending lugformed integral With said second side Wall, and a laterally slideableshoe having a horizontal flange disposed in said opening and extendingbeneath said lug.

5. A sash lock comprising a box adapted for attachment to a support,said box having a side Wall carrying a shoe engaging means,

a second side Wall opposite the first mentioned side Wall, a laterallyslideable shoe having a bottom flange disposed adjacent the bottom ofsaid box and an upright por tion engageable by said shoe engaging means,and a second shoe disposed Within said box, said second shoe having abottom flange resting upon the bottom flange of the first mentionedshoe.

6. A sash lock comprising a box adapted for attachment to a support,said box having a side Wall carrying a shoe engaging means, there beingan opening formed in the bottom of said box, a second side Wall oppositethe first mentioned side wall, an inwardly extending lug formed integralwith said second side Wall, and a laterally sliding shoe having ahorizontal flange disposed in said opening and extending beneath saidlug, and a second shoe disposed Within said box, said second shoe havinga bottom flange resting upon the horizontal flange of thefi1Sb'111611l3l0116d shoe, the bottom flange of the second mentionedshoe also extending beneath said lug.

7. A sash lock comprising a box adapted for attachment to a support,said box having a side Wall adapted to carry shoe engaging means, therebeing an opening formed in the bottom of said box, a second side Wallopposite the first mentioned side Wall, and a shoe having a laterallyextending bottom portion dis-posed Within said opening, said shoe beinglaterally slidable and having an upright portion engageable by said shoeengaging means.

In testimony whereof I have signed my name to this specification.

FRED M. DAVENPORT.

